Скачать или смотреть Environmental Chemistry | Unit -2 Part-1 | Environmental science

In this lecture, we cover Unit–2: Environmental Chemistry (Part–1) of UGC NET Environmental Science (Paper 2) in a detailed yet easy-to-understand manner.
This session is designed specially for aspirants who want strong conceptual clarity, even if they are revising these topics after a long time.

📌 Topics Covered in this Lecture:

• Classification of Elements
– Modern periodic table
– Periods, groups and group-wise properties

• Stoichiometry
– Concept of mole and molar mass
– Stoichiometric relationships
– Limiting reagent and environmental relevance

• Gibbs Free Energy
– Meaning and significance
– Gibbs free energy as a criterion for spontaneity

• Chemical Potential
– Formal definition
– Physical meaning and role in equilibrium

• Chemical Kinetics
– Rate of reaction and rate laws
– Zero, first and second order reactions
– Integrated rate equations
– Collision theory and transition state theory
– Mechanism of chemical reactions

• Chemical Equilibrium
– Physical and chemical equilibrium
– Law of mass action
– Equilibrium constant
– Le Chatelier’s principle

• Solubility of Gases in Water
– Concept of solubility
– Gas–liquid equilibrium

• Carbonate System
– CO₂–H₂CO₃–HCO₃⁻–CO₃²⁻ equilibrium
– Importance in natural waters

• Hydrocarbons
– Meaning and classification
– Saturated and unsaturated hydrocarbons

• Radioisotopes
– Meaning and types
– Natural radioactive decay series
– Artificially produced radioisotopes
– Harmful effects of radioisotopes

✨ Why watch this lecture?
✔ Conceptual clarity from basics
✔ UGC NET exam-oriented explanation
✔ Suitable for both beginners and revision
✔ Helpful for long-term retention

📚 Target Exam:
UGC NET Environmental Science (Paper 2)

📌 Next Video:
Unit–2 Part–2 (Atmospheric & Aquatic Chemistry)


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